557GI-06LFT

Overview

The 557GI-06LFT is a PCI Express clock multiplexer manufactured by Renesas Electronics. It functions as a 2-to-4 differential PCIe Gen1 clock mux, designed to distribute reference clocks within high-speed digital systems. The device operates with a maximum frequency of 200MHz and provides a single output configuration suitable for supporting multiple PCIe lanes or slots. It is housed in a compact 20-TSSOP package, facilitating surface-mount installation on printed circuit boards. The component supports an operating supply voltage of 3.3V and is rated for an extended industrial temperature range from -40°C to +85°C. This integration ensures robust signal integrity for reliable data transmission in space-constrained designs.

Feature Summary

• Functions as a 2-to-4 differential clock multiplexer specifically optimized for PCI Express Gen1 applications
• Ensures robust signal integrity to support reliable high-speed data transmission
• Compact TSSOP-20 package design ideal for space-limited electronic board layouts

Applications

• PCI Express (PCIe) system clock distribution networks
• High-performance computing server motherboards
• Industrial control systems requiring precise timing references

Procurement Notes

Verify the specific manufacturer part number against official Renesas documentation to ensure compatibility with design requirements. Confirm that the 20-TSSOP package dimensions align with PCB footprint specifications. Check RoHS compliance status through the manufacturer's official channels prior to procurement. Ensure that the 3.3V supply voltage and operating temperature range meet the environmental constraints of the target application. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with current production standards.

Selection Notes

Select this component when designing systems requiring a 2-to-4 differential clock mux for PCI Express Gen1 interfaces. The 200MHz maximum frequency capability supports standard PCIe clocking needs. Consider the 20-TSSOP package for assembly convenience in dense layouts. Verify that the 3.3V logic levels match the system power architecture. Evaluate the -40°C to +85°C operating range against environmental conditions. Ensure the single output configuration meets the downstream load requirements without additional buffering.

Part Context

This component belongs to the 557G series of clock generators and support products from Renesas Electronics. It is functionally related to the ICS557G-06 variant, often listed under alternate naming conventions such as 557G-06LFT. The series focuses on providing reliable clock solutions for high-speed serial interfaces like PCI Express. These devices are engineered to maintain signal quality across various industrial and commercial applications.

Replacement Considerations

Public confirmed substitute part numbers include ICS557G-06LFT. Verify pinout and electrical specifications before substitution.